Update Now: Apple Rolls Out Critical Fixes for iPhone 17, M5 Macs

Apple is patching problems on some of its newest devices just days before its biggest software event of the year.

The company released iOS 26.5.1 and macOS 26.5.1 on Tuesday, addressing a charging issue affecting certain iPhone 17 and iPhone Air models and an unexpected shutdown bug on Macs powered by Apple’s M5 chips. Neither update introduces new features, but both target reliability problems tied to recently released hardware.

The timing is notable as Apple prepares for WWDC, where it is expected to unveil the next generation of iOS, macOS, and other software platforms. For affected users, the latest updates focus on making today’s devices work more reliably before tomorrow’s software arrives.

iPhone 17 and iPhone Air charging bug fixed

According to Apple’s release notes, iOS 26.5.1 fixes a bug that could stop some devices from charging through a wired connection when their batteries were nearly empty.

“This update addresses an issue for a small number of users that may prevent wired charging on iPhone Air and iPhone 17 models when the battery is nearly drained,” Apple said in the release notes. The update applies to the iPhone 17 family, including the Pro models, as well as the iPhone Air.

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macOS 26.5.1 targets M5 shutdown issue

Apple also released macOS 26.5.1 for Macs equipped with M5 processors. The company says the update addresses a problem primarily affecting enterprise customers using specific networking tools.

“This update addresses an issue for enterprise users where Mac computers with an M5 chip could unexpectedly shut down when using certain content-filtering network extensions,” Apple said in the macOS release notes. The issue appears limited to environments that rely on specialized content-filtering software, making it more relevant for business and managed-device deployments than for typical consumer users.

Apple has not introduced new features in these updates, but the fixes are considered important for device reliability. For iPhone users, installing the update is straightforward: go to Settings > General > Software Update. Mac users can update via System Settings > General > Software Update.

The latest releases follow iOS 26.5, which launched in May, and arrive while Apple continues testing iOS 26.6 ahead of WWDC.

Apple is now focusing iOS 26 and macOS 26 updates mainly on performance improvements and bug fixes, as the company prepares for the next major release cycle.